The U. S. housing market estimates that 31% of all homes purchased in 2019 were considered investment properties. If a sample of 800 homes sold in 2019 is obtained what is the probability that at most 250 hor are going to be used as investment property? Round to four decimal places. OA. 0.5608
OB. 0.4392
O C. 0.0934
OD. 0.5935

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

Each day jake donates money to the global.

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95